公开(公告)号：US08489004B2

公开(公告)日：2013-07-16

申请号：US13701899

申请日：2011-05-23

申请人： Nofumi Mizumoto ,  Takeshi Maeyama ,  Junya Hirayama ,  Shigeo Uetake ,  Makiko Watanabe ,  Toshiya Natsuhara

发明人： Nofumi Mizumoto ,  Takeshi Maeyama ,  Junya Hirayama ,  Shigeo Uetake ,  Makiko Watanabe ,  Toshiya Natsuhara

IPC分类号： G03G15/08

CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G15/0806 ,  G03G2215/0648

摘要： A developer device includes two developer rollers arranged opposite to an image carrier. A first developer bias voltage (waveform Z) of a rectangular waveform obtained by superimposing an AC voltage on a DC voltage is applied to one of the developer rollers. A second developer bias voltage (waveform A) obtained by superimposing an AC voltage on a DC voltage is applied to the other developer roller. The waveform A is a waveform obtained by deforming the rectangular wave in the first developer bias voltage such that toner adhered to the image carrier is prevented from being dislodged by toner being subsequently scattered. According to the developer device, an optimal image density can be obtained at a low-density potential.

摘要翻译： 显影装置包括与图像载体相对布置的两个显影辊。 通过将交流电压叠加在直流电压上而获得的矩形波形的第一显影剂偏置电压（波形Z）被施加到一个显影辊。 通过将AC电压叠加在DC电压上获得的第二显影剂偏置电压（波形A）被施加到另一个显影辊。 波形A是通过使第一显影剂偏置电压中的矩形波变形而使得粘附到图像载体上的调色剂被调色剂随后分散而被移除而获得的波形。 根据显影剂装置，可以以低密度电位获得最佳图像密度。

公开(公告)号：US20130078008A1

公开(公告)日：2013-03-28

申请号：US13701899

申请日：2011-05-23

申请人： Nofumi Mizumoto ,  Takeshi Maeyama ,  Junya Hirayama ,  Shigeo Uetake ,  Makiko Watanabe ,  Toshiya Natsuhara

发明人： Nofumi Mizumoto ,  Takeshi Maeyama ,  Junya Hirayama ,  Shigeo Uetake ,  Makiko Watanabe ,  Toshiya Natsuhara

IPC分类号： G03G15/09

CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G15/0806 ,  G03G2215/0648

摘要： A developer device includes two developer rollers arranged opposite to an image carrier. A first developer bias voltage (waveform Z) of a rectangular waveform obtained by superimposing an AC voltage on a DC voltage is applied to one of the developer rollers. A second developer bias voltage (waveform A) obtained by superimposing an AC voltage on a DC voltage is applied to the other developer roller. The waveform A is a waveform obtained by deforming the rectangular wave in the first developer bias voltage such that toner adhered to the image carrier is prevented from being dislodged by toner being subsequently scattered. According to the developer device, an optimal image density can be obtained at a low-density potential.

摘要翻译： 显影装置包括与图像载体相对布置的两个显影辊。 通过将交流电压叠加在直流电压上而获得的矩形波形的第一显影剂偏置电压（波形Z）被施加到一个显影辊。 通过将AC电压叠加在DC电压上获得的第二显影剂偏置电压（波形A）被施加到另一个显影辊。 波形A是通过使第一显影剂偏置电压中的矩形波变形而使得粘附到图像载体上的调色剂被调色剂随后分散而被移除而获得的波形。 根据显影剂装置，可以以低密度电位获得最佳图像密度。

公开(公告)号：US08934790B2

公开(公告)日：2015-01-13

申请号：US12943714

申请日：2010-11-10

申请人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Nofumi Mizumoto ,  Makiko Watanabe

发明人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Nofumi Mizumoto ,  Makiko Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/0827 ,  G03G15/0855 ,  G03G15/0862

摘要： A development apparatus and an image forming apparatus wherein optical high-precision detection of the toner amount of a toner layer formed on a toner carrying member is ensured even when the great amount of the toner is deposited on the toner carrying member by transferring all or a part of the toner on the surface of the toner carrying member onto a detecting roller, and wherein stable images are provided at all times.

摘要翻译： 一种显影装置和图像形成装置，其中即使当大量的调色剂通过传送全部或一个或多个调色剂而将大量的调色剂沉积在调色剂承载构件上时，也确保了调色剂承载构件上形成的调色剂层的调色剂量的光学高精度检测 调色剂承载构件表面上的调色剂的一部分到检测辊上，并且其中始终提供稳定的图像。

公开(公告)号：US08699901B2

公开(公告)日：2014-04-15

申请号：US13041945

申请日：2011-03-07

申请人： Junya Hirayama ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

发明人： Junya Hirayama ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/0812 ,  G03G2215/0634

摘要： Provided is a deposited-toner measuring apparatus capable of accurate detection of the amount of toner deposited on the toner carrying member, and an image forming apparatus equipped with the aforementioned measuring apparatus and capable of controlling the amount of toner deposited on the toner carrying member to a desired level so as to provide stable image quality at all times. A deposited-toner measuring apparatus that removes a toner layer in a part of the surface of the toner carrying member, detects change in the capacitance at the portion with a toner layer and the portion without such a toner layer, and detects the amount of the deposited toner based on the detection result of the said change in the capacitance.

摘要翻译： 提供一种能够准确地检测沉积在调色剂承载构件上的调色剂量的沉积调色剂测量装置，以及配备有上述测量装置的图像形成装置，并且能够将沉积在调色剂承载构件上的调色剂的量控制到 所需的水平，以便始终提供稳定的图像质量。 去除调色剂承载构件表面的一部分中的调色剂层的沉积调色剂测量装置检测在具有调色剂层的部分处的电容的变化和没有这样的调色剂层的部分的变化，并且检测 基于所述电容变化的检测结果的沉积调色剂。

公开(公告)号：US20110222884A1

公开(公告)日：2011-09-15

申请号：US13041945

申请日：2011-03-07

申请人： Junya HIRAYAMA ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

发明人： Junya HIRAYAMA ,  Toshiya Natsuhara ,  Takeshi Maeyama ,  Shigeo Uetake ,  Nofumi Mizumoto ,  Makiko Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0634

摘要： Provided is a deposited-toner measuring apparatus capable of accurate detection of the amount of toner deposited on the toner carrying member, and an image forming apparatus equipped with the aforementioned measuring apparatus and capable of controlling the amount of toner deposited on the toner carrying member to a desired level so as to provide stable image quality at all times. A deposited-toner measuring apparatus that removes a toner layer in a part of the surface of the toner carrying member, detects change in the capacitance at the portion with a toner layer and the portion without such a toner layer, and detects the amount of the deposited toner based on the detection result of the said change in the capacitance.

摘要翻译： 提供一种能够准确地检测沉积在调色剂承载构件上的调色剂量的沉积调色剂测量装置，以及配备有上述测量装置的图像形成装置，并且能够将沉积在调色剂承载构件上的调色剂的量控制到 所需的水平，以便始终提供稳定的图像质量。 去除调色剂承载构件表面的一部分中的调色剂层的沉积调色剂测量装置检测在具有调色剂层的部分处的电容的变化和没有这样的调色剂层的部分的变化，并且检测 基于所述电容变化的检测结果的沉积调色剂。

公开(公告)号：US08335445B2

公开(公告)日：2012-12-18

申请号：US12731316

申请日：2010-03-25

申请人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

发明人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G15/0808 ,  G03G2215/0607 ,  G03G2215/0648

摘要： Provided are a development apparatus and an image forming apparatus which, in a hybrid development apparatus provided with a plurality of toner carriers, a toner supply capability to supply toner to each toner carrier is controlled independent of development electric fields between the toner carriers and an image carrier, whereby each toner carrier is allowed to exhibit a desired development capability, and even in the case of high speed development, a high quality image is provided. The phases, the frequencies, and/or the duty ratios of the alternating current components of the voltages applied to the plurality of the toner carriers are made to be different, whereby the toner supply amount for each toner carrier from the developer carrier is controlled independently of the development electric fields between the toner carriers and the image carrier.

摘要翻译： 提供一种显影装置和图像形成装置，在具有多个调色剂载体的混合显影装置中，独立于调色剂载体和图像之间的显影电场来控制向每个调色剂载体供应调色剂的调色剂供应能力 载体，由此允许每个调色剂载体表现出期望的显影能力，并且即使在高速显影的情况下，也提供高质量的图像。 使施加到多个调色剂载体的电压的交流分量的相位，频率和/或占空比被制成不同，由此独立地控制来自显影剂载体的每个调色剂载体的调色剂供给量 的调色剂载体和图像载体之间的显影电场。

公开(公告)号：US08483600B2

公开(公告)日：2013-07-09

申请号：US12644544

申请日：2009-12-22

申请人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

发明人： Shigeo Uetake ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G15/0928 ,  G03G2215/0609

摘要： Provided is a development device and an image forming apparatus that realize high image quality with improved decrease in density at high speed development and with reduced occurrence of development hysteresis (ghost) in a hybrid developing method having a plurality of toner carriers, by reducing the decrease in the toner supplying ability to a downstream-side toner carrier, which decrease is caused by the supply of toner to an upstream-side toner carrier on an upstream side in a rotating direction of a developer carrier. By providing a magnetic pole between main magnetic poles, of the developer carrier, facing the toner carriers, a magnetically raised bristle of developer is moved by a magnetic force, while the developer in which development hysteresis due to supplying toner to the upstream-side toner carrier occurred is conveyed to supply toner to the downstream-side toner carrier, whereby a developer layer is stirred.

摘要翻译： 提供了一种显影装置和图像形成装置，其通过改善在高速显影下的密度降低而实现高图像质量，并且通过减少减少的减少在具有多个调色剂载体的混合显影方法中减少显影滞后（重影）的发生 在下游侧调色剂载体的调色剂供给能力中，这是通过在显影剂载体的旋转方向的上游侧向上游侧调色剂载体供给调色剂而引起的。 通过在显影剂载体的主要磁极之间设置磁极，面对调色剂载体，磁力升高的显影剂刷毛通过磁力移动，而由于向上游侧调色剂供应调色剂而产生显影滞后的显影剂 发送的载体被输送以向下游侧调色剂载体供给调色剂，由此搅拌显影剂层。

公开(公告)号：US08200130B2

公开(公告)日：2012-06-12

申请号：US12592790

申请日：2009-12-02

申请人： Takeshi Maeyama ,  Toshiya Natsuhara ,  Junya Hirayama ,  Shigeo Uetake ,  Makiko Watanabe

发明人： Takeshi Maeyama ,  Toshiya Natsuhara ,  Junya Hirayama ,  Shigeo Uetake ,  Makiko Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/0896 ,  G03G15/0818 ,  G03G2215/0648

摘要： In a hybrid development method using a plurality of toner carriers, a development device and image forming apparatus are provided, wherein high image quality in which toner density is not reduced even in the case of high speed printing and the occurrence of development hysteresis (ghost) is controlled is ensured by accelerating the collection of the post-development residual toner on the toner carrier. The counter-charge having occurred in the developer remains in the developer without decreasing to disappear until the developer moves to the second toner carrier on the downstream-side, wherein this counter-charge is caused by supplying toner to the first toner carrier upstream in the rotating direction of the developer carrier.

摘要翻译： 在使用多个调色剂载体的混合显影方法中，提供了显影装置和图像形成装置，其中即使在高速打印的情况下也不降低调色剂浓度的高图像质量和显影滞后（鬼影）的发生， 通过加速调色剂载体上的显影后残留调色剂的收集来确保。 发生在显影剂中的反电荷保持在显影剂中而不减少，直到显影剂移动到下游侧的第二调色剂载体，其中该反电荷是通过向第一调色剂载体中的第一调色剂载体 显影剂载体的旋转方向。

公开(公告)号：US20100254725A1

公开(公告)日：2010-10-07

申请号：US12731316

申请日：2010-03-25

申请人： Shigeo UETAKE ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

发明人： Shigeo UETAKE ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0808 ,  G03G2215/0607 ,  G03G2215/0648

摘要： Provided are a development apparatus and an image forming apparatus which, in a hybrid development apparatus provided with a plurality of toner carriers, a toner supply capability to supply toner to each toner carrier is controlled independent of development electric fields between the toner carriers and an image carrier, whereby each toner carrier is allowed to exhibit a desired development capability, and even in the case of high speed development, a high quality image is provided. The phases, the frequencies, and/or the duty ratios of the alternating current components of the voltages applied to the plurality of the toner carriers are made to be different, whereby the toner supply amount for each toner carrier from the developer carrier is controlled independently of the development electric fields between the toner carriers and the image carrier.

摘要翻译： 提供一种显影装置和图像形成装置，在具有多个调色剂载体的混合显影装置中，独立于调色剂载体和图像之间的显影电场来控制向每个调色剂载体供应调色剂的调色剂供应能力 载体，由此允许每个调色剂载体表现出期望的显影能力，并且即使在高速显影的情况下，也提供高质量的图像。 使施加到多个调色剂载体的电压的交流分量的相位，频率和/或占空比被制成不同，由此独立地控制来自显影剂载体的每个调色剂载体的调色剂供给量 的调色剂载体和图像载体之间的显影电场。

公开(公告)号：US20100183343A1

公开(公告)日：2010-07-22

申请号：US12644544

申请日：2009-12-22

申请人： SHIGEO UETAKE ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

发明人： SHIGEO UETAKE ,  Toshiya Natsuhara ,  Junya Hirayama ,  Takeshi Maeyama ,  Makiko Watanabe

IPC分类号： G03G15/09

CPC分类号： G03G15/0808 ,  G03G15/0928 ,  G03G2215/0609

摘要： Provided is a development device and an image forming apparatus that realize high image quality with improved decrease in density at high speed development and with reduced occurrence of development hysteresis (ghost) in the hybrid developing method having a plurality of toner carriers, by reducing the decrease in the toner supplying ability to the downstream-side toner carrier, which decrease is caused by the supply of toner to the toner carrier on the upstream side in the rotating direction of the developer carrier. By providing a magnetic pole between main magnetic poles, of the developer carrier, facing the toner carriers, a magnetically raised bristle of developer is moved by a magnetic force, while the developer in which development hysteresis due to supplying toner to the upstream-side toner carrier occurred is conveyed to supply toner to the downstream-side toner carrier, whereby the developer layer is stirred.

摘要翻译： 提供了一种显影装置和图像形成装置，其通过降低降低的速度，在具有多个调色剂载体的混合显影方法中实现高图像质量，改善了高速显影下的密度降低和显影滞后（重影）的发生。 在向下游侧调色剂载体的调色剂供给能力中，这是由于在显影剂载体的旋转方向上的上游侧向调色剂载体供应调色剂而引起的。 通过在显影剂载体的主要磁极之间设置磁极，面对调色剂载体，磁力升高的显影剂刷毛通过磁力移动，而由于向上游侧调色剂供应调色剂而产生显影滞后的显影剂 发送的载体被输送以向下游侧调色剂载体供给调色剂，从而搅拌显影剂层。